一种粒度可伸缩的物理寻址模式  

A Scalable Granularity Model for Physical Addressing

作　　者：张陌[1] 张云舟 谢刚 张刚[1] ZHANG Mo;ZHANG Yun-zhou;XIE Gang;ZHANG Gang(College of Information Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Sanya Research Centre Institute of Remote Sensing and Digital Earth of Chinese Academy of Sciences,Sanya 572029,China;Taiyuan University of Science and Technology,Taiyuan 030027,China)

机构地区：[1]太原理工大学信息工程学院,山西太原030024 [2]三亚中科遥感研究中心,海南三亚572029 [3]太原科技大学,山西太原030027

出　　处：《中北大学学报（自然科学版）》2018年第4期420-425,共6页Journal of North University of China(Natural Science Edition)

基　　金：海南省自然科学基金资助项目(617216)

摘　　要：存储阵列逻辑单元与物理单元的寻址粒度差异导致大量不必要的地址转换计算,其树形结构难以支持并行处理,云存储的映射规约机制特别适合解决这个难题.为此提出超扇区SS的概念,并基于SS设计了矩型阵列RA结构,使得存储阵列的物理寻址粒度可伸缩并与文件系统逻辑单元尺寸保持一致,消除了二者之间差异并支持不同文件系统加载.RA结构在逻辑单元与物理单元之间,硬件实现了云存储的映射/规约机制,多个RA阵列可以堆叠连接和并行访问,在存储系统扩容的同时可以实现访问提速,是一种用于大数据处理的粒度可伸缩的物理寻址模式.For present storage array,its addressing granularity difference between the logic unit and the physical unit which leads to a large amount of unnecessary calculations on address conversion,and its tree-type structure restricts its parallel accessing storage mediums.The mapping protocol mechanism of cloud storage is particularly suitable for solving this problem.Therefore,we proposed the concept of super sector SS,and designed the RA architecture of rectangular array based on SS,which made the physical addressing granularity of a storage array become scalable,and in keeping with the file system logic unit size,thus eliminated the differences between both,and can ensure that it is able to be loaded by different file systems.For the RA structure,we set up a hardware scheme of the cloud storage＇s mapping protocol mechanism in between logical units and physical units to supports stacked connection of multiple RA arrays and accessing its storage mediums in parallel.So an acceleration in the accessing of the RA arrays can be achieved while expansion of its storage capacity,which is a physical addressing model of scalable granularity for big data processing.

关 键 词：紧凑云 矩型阵列 堆叠连接 存储装备 超扇区 

分 类 号：TP333.1[自动化与计算机技术—计算机系统结构]